The Samsung M321R2GA3PB0-CWM is a 16GB DDR5-5600 ECC registered DIMM (RDIMM) supplied through our B2B channel for resellers, system integrators, and IT procurement teams building out server, virtualization, and cloud infrastructure platforms. As a registered ECC module, it is intended exclusively for server and workstation platforms with RDIMM support and is not compatible with desktop UDIMM sockets. Achieved memory speed is ultimately determined by the host platform and CPU memory controller.
Sourcing and Supply Highlights
- Stock availability: Channels are maintained for regular replenishment; bulk quantities can be reserved against confirmed purchase orders. Contact us for current on-hand and incoming stock before scheduling large deployments.
- Batch consistency: Orders within the same production lot are prioritized wherever possible, ensuring identical firmware/date codes across matched sets — critical for multi-channel server builds and staged rollouts.
- Warranty & RMA: Standard B2B warranty applies. Defective units are handled through a structured RMA workflow with designated points of contact, minimizing downtime for integrator service commitments.
- Lead times: In-stock items ship from warehouse shortly after order confirmation; large-volume or allocation-based requirements are quoted with a committed lead time.
- Export compliance: Units are CE and FCC certified and RoHS compliant, with documentation available to support customs clearance and regulatory requirements in destination markets.
Key specifications
| Parameter | Specification |
| Brand | Samsung |
| Part Number | M321R2GA3PB0-CWM |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 16GB |
| Speed | DDR5-5600 / PC5-44800 (platform dependent) |
| Data Transfer Rate | 5600 MT/s (platform dependent) |
| Rank Configuration | 1Rx8 (single rank) |
| Module Type | RDIMM |
| Pin Count | 288-pin |
| Chip Organization | (2G × 8) × 10 |
| CAS Latency | CL46 |
| Operating Voltage | 1.1V |
| ECC Support | Yes |
| Application | Enterprise servers, cloud computing, workstations, data centers |
| Operating Environment | 24/7 enterprise-class operation |
| Product Status | Mass production |
Notes for Integrators and Resellers
- DDR5 RDIMMs are not interchangeable with DDR4 modules and will not operate in standard desktop DDR5 UDIMM slots. Confirm end-customer platform compatibility against the vendor’s memory support list (QVL) before quoting.
- The 16GB 1Rx8 density at DDR5-5600 sits in the mainstream tier of the DDR5 RDIMM family — a practical base module for channel-populated virtualization hosts and cache-tier deployments, with room to scale via higher-density SKUs from the same family.
- For multi-channel builds, procure modules of identical part number, capacity, and rank configuration to guarantee balanced channel population and consistent JEDEC timing behavior across the fleet.
- Resellers can bundle this SKU with complementary server memory densities and SSDs from our catalog to consolidate procurement and improve landed-cost efficiency.
Whether you are fulfilling a single integrator project or establishing recurring supply for data center deployments, our team can structure pricing and logistics around your volume requirements. For current stock, lot information, and volume pricing, request a wholesale quote today.
Wholesale & Procurement Notes
- MOQ negotiable depending on SKU availability and destination market.
- Tiered volume pricing available — request a quote for project or recurring volumes.
- Typical lead time: 3–7 business days for in-stock items; extended lead times quoted for bulk orders.
- Packing & shipping: anti-static OEM packaging, carton/pallet consolidation, air or sea freight, DDP/DAP options supported.
- RMA window: standard B2B warranty period with structured RMA processing — terms confirmed at order.
Related reading
- Surveillance & storage drives wholesale: Seagate/WD bulk buying guide
- Intel/AMD CPU Wholesale: How Distributors Price Bulk Orders — A Shenzhen Sourcing Guide
- Genuine vs refurbished consumer electronics: how to verify before bulk order — a Shenzhen buying guide
